12 books like Project Hail Mary
Project Hail Mary works because it braids three things together: a narrator who talks to you like a mate, science you can follow on the back of an envelope, and an alien you end up caring about. The books below each pick up at least one of those strands and run with it.
Updated September 2026
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Working the problem: survival by calculation
Seveneves by Neal Stephenson 2015
Shares the orbital-mechanics-on-the-whiteboard pleasure of watching engineers improvise their way out of an extinction-level emergency; the scale is civilisational rather than one man in a lab, and the voice is cool and documentary where Weir's is chatty.
Delta-v by Daniel Suarez 2019
Another near-future mission where every manoeuvre is costed in fuel and margin, with asteroid mining standing in for the Astrophage problem; the tension comes from money and the people funding the trip as much as from physics.
To Be Taught, If Fortunate by Becky Chambers 2019
Field science done properly, with real curiosity about alien biology and the ethics of touching it; it's short, quiet and elegiac, and nobody is trying to be funny.
First contact where the puzzle is understanding each other
Children of Time by Adrian Tchaikovsky 2015
Builds a genuinely non-human intelligence from the ground up and then makes contact the whole point, much as Rocky is; it spans millennia of evolution instead of a few months in one ship.
Rendezvous With Rama by Arthur C. Clarke 1973
The same joy of exploring an alien artefact by measurement and deduction, working out what things are for; the characters are thin by design and the book keeps its distance emotionally.
Semiosis: A novel of first contact by Sue Burke 2018
Turns on colonists slowly negotiating communication and trust with a life form that thinks nothing like they do; it unfolds across generations in a rotating cast rather than one voice.
Stories of Your Life and Others by Ted Chiang 2002
The title story is the best thing written about decoding an alien language from first principles, and shares Weir's faith that thinking hard is dramatic; these are precise, melancholy short stories, not a mission thriller.
A funny, talkative narrator carrying the whole book
All Systems Red by Martha Wells 2017
A deadpan, self-deprecating narrator who solves technical crises while trying to avoid feelings, which is Ryland Grace in armour; it's a novella and its warmth comes from reluctant human colleagues, not an alien friend.
We Are Legion by Dennis E. Taylor 2016
Engineer-brain problem-solving and constant wisecracks in space, with the same audiobook-friendly rhythm; the plot is episodic and the jokes lean harder on nerd references.
Mickey7 by Edward Ashton 2022
A wry expendable narrator on a colony mission has to work out what the local life actually wants from him; the humour is blacker and the science looser.
Lone protagonist piecing together what has happened to them
Dark Matter by Blake Crouch 2016
Opens with a man waking into a situation he doesn't understand and reasoning his way forward, at the same headlong pace; it's a physics-flavoured thriller set on Earth, with dread where Weir has delight.
The Gone World by Tom Sweterlitsch 2018
Also hangs on an investigator reconstructing a catastrophe from fragments, with deep-future stakes and hard-edged speculation; it's grim, violent and closer to crime fiction in temperament.
If you also liked…
- Red Rising by Pierce Brown
- Fourth Wing by Rebecca Yarros
- A Court of Thorns and Roses by Sarah J. Maas
- Fifty Shades of Grey by E.l. James
- Harry Potter by J.K. Rowling
Questions
- Is anything here as funny as Project Hail Mary?
- We Are Legion (We Are Bob) and Mickey7 come closest for constant jokes, and All Systems Red has the driest narrator of the lot. None of them have quite the same open-hearted warmth.
- I mainly want another alien friendship like Rocky. Where do I start?
- Children of Time is the strongest bet, with Semiosis next if you want the negotiation side of it. Neither gives you a buddy comedy, but both take the alien seriously as a mind.
- Which of these has science I can actually follow?
- Seveneves and Delta-v both show their working in orbital mechanics and engineering, and To Be Taught, If Fortunate does the same for biology. Dark Matter and The Gone World use their physics as a springboard rather than a constraint.